The Arduino UNO R4 Minima comes equipped with the RA4M1 microprocessor from Renesas. Providing a power-packed performance and an array of extended capabilities, this robust microcontroller board ...

Then, chances are you already know what an Arduino ... while the Uno sports an ATmega328P. As they're both 8-bit AVR RISC-based microcontrollers, they share many technical specifications.